I think ds focuses on different Dino and gun models.
if they release more look alike models of real-life Dino's/guns, then they would become stats dependant and all of the models would lose their uniqueness and everything (including former Dino's/guns) would need a re-make for their stats. cuz theres only a handful of carnivores look different but most of them look the same. examples: giga, allo, carcho.. etc. basically almost all large therapists looks like rex.